A beam of light in air enters a glass slab with an index of refraction of 1.40 at an angle of incidence of 30.0°. What is the angle of refraction?
A) 20.9°
B) 47.5°
C) 51.8°
D) 30.0°
E) 14.9°
A
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a. 2.0 J b. 1.8 J c. 2.2 J d. 1.6 J e. 1.0 J